A by-the-book Captain is ordered to capture a strategic village in Italy. The Italian soldiers are willing to surrender if the can have a festival first. The lieutenant (Coburn) convinces the Captain (Shawn) "Wake Me When It's Over" (1960) this is the only way.
Because of aerial reconnaissance they must look like they are fighting. To sort this out an intelligence officer, Potter (Morgan) is sent in and gets lost in the catacombs singing "Peas pottage hot". Mean while the festival gets complicated with the Mayors daughter. Who wins?